"I am pretty happy with my new iPhone 8, but the auto-brightness is NOT working properly! Kinda irritating as I have to manually set things every time I get into a dark room and then out, and into the sunlight etc. Can anyone help me to fix this issue and I need my iPhone auto-brightness works again! Thanks!"
Actually, many users have encountered various iPhone brightness problems after updating to iOS 11, including iPhone screen is too dark while the brightness level is all the way up, iPhone auto-brightness not working, and iPhone brightness won't go up. In this article, we will show you what to do if your iPhone brightness not working in iOS 11 with the situation above.
New iOS update may cause various system-related problems, such as iPhone keeps restarting, or iPhone alarm/notification/flashlight not working properly. Read on and use the effective solutions below to fix iPhone brightness not working after iOS 11.
There is a setting called Reduce White Point on your iPhone that will reduce the intensity of bright colors on your device and then you will have a dim screen. To turn off Reduce White Point, you can
Go to "Settings" > "General" > "Accessibility" > "Display Accommodations" > turn off "Reduce White Point".
Long-time no restarting will cause some unexpected issues on your iPhone, such as iPhone live wallpaper not working, iPhone screen recording not working or iPhone auto-brightness not working here.
Press and hold the "Sleep/Wake" button until the red slider shows up, then drag the "slider to power off". After 30 seconds later, press and hold the "Sleep/Wake" button again until the Apple logo appears on your iPhone.
If the Zoom feature is on, you may get the dim screen on your iPhone. Therefore, turning off Zoon is one way deserving to try to fix this problem.
Go to "Settings" > "General" > "Accessibility" > "Zoom" > turn it off.
If your iPhone brightness not working in iOS 11 caused by some errors in iOS settings, you can try to fix this issue by resetting all settings on iPhone. And this operation won't cause any data loss, do it without worry.
Go to "Settings" > "General" > "Reset" > "Reset All Settings". Then all the settings on your iPhone will be wiped and you can set up your iPhone again to check the matter.
If none of the above solutions can fix the iPhone brightness issue and your iPhone screen is still too dark or the auto-brightness also won't work, then you have to consider restoring your iPhone. When we talk about restore iPhone, usually, we can restore iPhone from iCloud or restore iPhone with iTunes backup. For better keep the data safe, we highly recommend you to restore iPhone with iTunes backup.
No matter you are using iPhone or iPad, the old iPhone or the latest iPhone 8/X, you may meet some unexpected issues from time to time, such as iPhone stuck on apple logo, iPhone AirDrop not working, iPhone such on recovery mode, iPhone physical broken or even virus attack. Then, how to protect your device data safe at this time? The answer will definitely be a regular iPhone data backup with a reliable and free iPhone manager. And EaseUS MobiMover Free is such a tool enables you to export almost all the iPhone files to the Windows computer with only one-click. And the supportable files are contacts, messages, notes, calendars, voice mails, books, Safari bookmarks & history, photos, videos, and audios.
Step 1. Connect your iPhone to your PC running Windows 7/8/10 with a USB cable. Tap "Trust" on your iPhone screen if asked. Run EaseUS MobiMover and navigate to "Backup Manager" > "Back up".
Step 2. All the supported categories are selected by default. Click "One-Click" backup to start backing up your iPhone to PC.
Step 3. Wait patiently until the backup process completes.
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